Exercise: Dna Structure And Replication

Questions for: Dna Structure And Replication

TM refers to the temperature at which
A:
membranes are 50% fluid
B:
50% of a DNA molecule is denatured
C:
50% of a protein molecules are denatured
D:
all of the above
Answer: D
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In an agarose gel, DNA is moving from
A:
cathode to anode
B:
left to right
C:
anode to cathode
D:
A to B
Answer: A
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Which will require a higher temperature to denature?
A:
DNA with a high G-C content
B:
DNA with a high A-T content
C:
RNA with a high G-C content
D:
RNA with a high A-T content
Answer: A
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The B-DNA structure found in solution is a
A:
left-handed double helix of antiparallel chains (10 bp/turn)
B:
right-handed double helix of antiparallel chains (∼10 bp/turn)
C:
left-handed zig-zag helix of antiparallel chains (10 bp/turn)
D:
right-handed double helix of parallel chains (∼10 bp/turn)
Answer: B
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The site on a bacterial chromosome that marks the initiation point for chromosome replication is called
A:
Ori
B:
a promoter
C:
Pro
D:
an initiation codon
Answer: A
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